Update docs for eslint

CONTRIBUTING.md

@@ -30,7 +30,7 @@ Please see http://www.mattermost.org/feature-requests/ .
 ## Pull request
 Pull requests are welcome. Thank you for your great work!
 
-1. When you edit the code, please run `npm run prettify` to format your code before `git commit`.
+1. When you edit the code, please confirm `npm test` successfully finishes.
 2. Please update `CHANGELOG.md` and `docs/*.md` if it's necessary.
 3. In the description of your pull request, please include:
    * Operating System version on which you tested

PULL_REQUEST_TEMPLATE.md

@@ -3,7 +3,6 @@ First of all, please read [`CONTRIBUTING.md`](https://github.com/mattermost/desk
 ---
 
 - [ ] Complete [Mattermost Contributor Agreement](http://www.mattermost.org/mattermost-contributor-agreement/)
-- [ ] Execute `npm run prettify` to format codes
 - [ ] Update `CHANGELOG.md` and/or `doc/*.md` if it's necessary.
 - [ ] Write about environment which you tested
   - Operating system

docs/development.md

@@ -62,7 +62,7 @@ $ npm run test:app
 Test coding style:
 
 ```
-$ npm run test:code
+$ npm run lint:js
 ```
 
 ### Helper commmands